The box contains 28 metal spheres, 28 light green, dark green and light blue magnetic bars, 2 blue square base panels, 2 light green pentagonal base panels; the elements are compatible with the Geomag Classic and Panels lines. Geomag is an educational game of the Stem category, for an interdisciplinary approach to learning; Geomag games favor the development of hand-eye coordination, enhance visual sensitivity and attention span. No limits to the imagination: The elements of this set are compatible with all Geomag Classic and Panels lines